WEhat is your report: CTA, MRA or conventional angiography? Only result from the conventional angiography is reliable.
If it is true, the aneurysm is very small, she is old, no need to do any thing, except to control HTN, hyperlipidemia and quiting smoking.Also aneurysm in the cavernous sinus rarely raptures, and easily be mis-diagnosed.
Cigarette smoking, size of the unruptured intracranial aneurysm, and age, inversely, are important factors determining risk for subsequent aneurysm rupture.
Hemorrhage from previously unruptured aneurysms, for an average annual incidence of 1.3%.